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Penstemon haydenii, the
blowout penstemon or
blowout beardtongue, is a
species of
flowering plant in the
genus Penstemon and the
family Plantaginaceae...
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Castilleja haydenii, also
known as Hayden's paintbrush, is a
species of
flower found in the
mountains of
southern Colorado and
northern New Mexico, generally...
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haydenii, or Hayden's ringlet, is a
species of brush-footed
butterfly in the
family Nymphalidae. The MONA or
Hodges number for
Coenonympha haydenii is...
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Derotmema haydenii, or Hayden's gr****hopper, is a
species of band-winged gr****hopper in the
family Acrididae. It is
found in
Central America and North...
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Carex haydenii (common name, Hayden's sedge), is a
species of
flowering plant in the
family Cyperaceae,
native to
eastern Canada and the north-central...
- to
ecosystem collapse on ranchlands. The
blowout penstemon (Penstemon
haydenii) is an
endangered species,
found only in the
Sandhills and in
similar environments...
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Thayer Olney, in 1871. A
subspecies of
garter snake,
Thamnophis radix haydenii, was
named for him by
Robert Kennicott in 1860. A land snail, Oreohelix...
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hatschbachii Vincent &
Butterworth Trifolium haussknechtii Boiss.
Trifolium haydenii Porter Trifolium heldreichianum (Gibelli & Belli) Hausskn.
Trifolium hickeyi...
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Nakai ex
Tuyama Carex hatuyenensis N.K.Khoi
Carex haydeniana Olney Carex haydenii Dewey Carex healyi K.A.Ford
Carex hebecarpa C.A.Mey.
Carex hebes Nelmes...
- Hartweg's
beardtongue Penstemon havardii A.Gray Big Bend
beardtongue Penstemon haydenii S.Watson ex J.M.Coult.
blowout beardtongue blowout penstemon Penstemon...
